.

It is, perhaps, the largest in America, and is situated in a pleasant level plain, about twenty-five yards from the river, into which it falls over some steep, irregular rocks, with a sudden ascent of about six feet in one part of its course.

The water boils up from among the rocks, and with such force near the centre that the surface seems higher there than the earth on the sides of the fountain, which is a handsome turf of fine green grass.

The water is extremely pure, cold, and pleasant to the taste, not being impregnated with lime or any foreign substance.

It is perfectly transparent, and continues its bluish cast for half a mile down the Missouri, notwithstanding the rapidity of the river.